diff options
| author | Marek Vasut <marek.vasut+renesas@gmail.com> | 2018-08-07 12:27:10 +0200 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2018-08-28 11:00:19 +0200 |
| commit | 1335e7745f77f122cf4196b8da2aa2fc5edad475 (patch) | |
| tree | 0bb9c4cefffce4ff951c03a89f5ad49286fd5bd7 /drivers/usb | |
| parent | b43cdf9b3fe246a8920d2b62ee41fc1722315ef0 (diff) | |
usb: ehci: Add PHY support to ehci-pci
Add support for operating a PHY attached to ehci-pci. There are
systems where the EHCI controller is internally wired to a PCI
bus and has a PHY connected to it as well, ie. the R-Car Gen2.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/host/ehci-pci.c | 31 |
1 files changed, 27 insertions, 4 deletions
diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c index a56e5bd144..6150f3d888 100644 --- a/drivers/usb/host/ehci-pci.c +++ b/drivers/usb/host/ehci-pci.c @@ -16,17 +16,23 @@ /* Information about a USB port */ struct ehci_pci_priv { struct ehci_ctrl ehci; + struct phy phy; }; #ifdef CONFIG_DM_USB - -static void ehci_pci_init(struct udevice *dev, struct ehci_hccr **ret_hccr, +static int ehci_pci_init(struct udevice *dev, struct ehci_hccr **ret_hccr, struct ehci_hcor **ret_hcor) { + struct ehci_pci_priv *priv = dev_get_priv(dev); struct ehci_hccr *hccr; struct ehci_hcor *hcor; + int ret; u32 cmd; + ret = ehci_setup_phy(dev, &priv->phy, 0); + if (ret) + return ret; + hccr = (struct ehci_hccr *)dm_pci_map_bar(dev, PCI_BASE_ADDRESS_0, PCI_REGION_MEM); hcor = (struct ehci_hcor *)((uintptr_t) hccr + @@ -43,6 +49,8 @@ static void ehci_pci_init(struct udevice *dev, struct ehci_hccr **ret_hccr, dm_pci_read_config32(dev, PCI_COMMAND, &cmd); cmd |= PCI_COMMAND_MASTER; dm_pci_write_config32(dev, PCI_COMMAND, cmd); + + return 0; } #else @@ -120,12 +128,27 @@ static int ehci_pci_probe(struct udevice *dev) { struct ehci_hccr *hccr; struct ehci_hcor *hcor; + int ret; - ehci_pci_init(dev, &hccr, &hcor); + ret = ehci_pci_init(dev, &hccr, &hcor); + if (ret) + return ret; return ehci_register(dev, hccr, hcor, NULL, 0, USB_INIT_HOST); } +static int ehci_pci_remove(struct udevice *dev) +{ + struct ehci_pci_priv *priv = dev_get_priv(dev); + int ret; + + ret = ehci_deregister(dev); + if (ret) + return ret; + + return ehci_shutdown_phy(dev, &priv->phy); +} + static const struct udevice_id ehci_pci_ids[] = { { .compatible = "ehci-pci" }, { } @@ -135,7 +158,7 @@ U_BOOT_DRIVER(ehci_pci) = { .name = "ehci_pci", .id = UCLASS_USB, .probe = ehci_pci_probe, - .remove = ehci_deregister, + .remove = ehci_pci_remove, .of_match = ehci_pci_ids, .ops = &ehci_usb_ops, .platdata_auto_alloc_size = sizeof(struct usb_platdata), |